Katie Collins, Ciera Eastin and Caleb Bankston compete in the first Immunity Challenge during the premiere episode of 'Survivor: Blood vs Water televised on Wednesday, September 18, 2013. (Monty Brinton/CBS)

Former "Survivor: Blood vs. Water" contestant Caleb Bankston was killed Tuesday by a derailed train, according to TMZ.

The 26-year-old was a locomotive engineer/conductor at the Alabama Warrior Railway in Birmingham. He was reportedly working on one of the trains when it derailed and killed him.

The cause of the accident is unclear and being investigated by OSHA and the Federal Railroad Administration.

People.com reported Bankston's death sent "shock waves" through the "Survivor" community. Bankston was a well-liked contestant who appeared on the show in 2013 with his fiance Colton Cumbie, ending up in ninth place.

Caleb Bankston during the premiere episode of 'Survivor: Blood vs Water televised on Wednesday, September 18, 2013. (Timothy Kuratek/CBS)

According to People.com, Bankston is the third contestant from the CBS show to die since its 2000 premiere. Former "Survivor: Palau" contestant Jenn Lyon died in 2010 at 37 of breast cancer. BB Anderson, who appeared on the show's first season, died of brain cancer last year at the age of 77.